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Results tagged with frida
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user 1848
A dynamic instrumentation toolkit for developers, reverse-engineers, and security researchers.
2
votes
Accepted
Frida hook X509Certificate
If you use an TLS interception proxy and have a rooted phone it may be easier to add the used root CA certificate as system certificate (like described in mitmproxy doc. Afterwards the certificate ver …
- 1,223
3
votes
Accepted
Frida not hook functions
This is the real function name you have to use for hooking in Frida. …
- 1,223
1
vote
Accepted
Frida Android how to change value of array passed to method
Frida seems to have some bugs regarding Java arrays that are modified or replaced by JavaScript code. …
- 1,223
0
votes
Convert string to byte array in frida js script
The only problem of your code seems to that frida wants to help you too much:
Before you call json = json.replace(arg1,arg2); json is an instance of the Java type java.lang.String. … When you assign the return value of the replace method to json, frida seems to automatically convert the Java String to a JavaScript string (I assume for convenience). …
- 1,223
2
votes
Accepted
Create instance of iOS class that contains a . with frida
ObjC.classes.TestClass is just a shorthand in JavaScript for
ObjC.classes['TestClass'].
Therefore you should be able to access an Test.Class instance this way:
var instance = ObjC.chooseSync(ObjC.clas …
- 1,223
2
votes
Frida reading files is slow
The reason why your code is slow is not Frida but your code. Your code would be also slow when executed in plain J2SE Java. … The less Frida JavaScript calls you have to perform the faster the result.
Therefore check if your app contains a libraray like Apache common IO. …
- 1,223
1
vote
Accepted
Log input data and resulting hash for CC_MD5 calls in an iOS app with Frida
The main problem of your code is that you expect the md parameter to be a string. In C the unsigned char * is not an indicator for a string. Instead it is often for storing binary data.
In this case m …
- 1,223
1
vote
Accepted
Debug shared library in Android application
What you see is possible if the APK files uses the mode extractNativeLibs="false". If that attribute is set in the <application tag in AndroidManifest.xml then Android loads the .so files directly fro …
- 1,223
5
votes
Accepted
Dynamic analysis (Frida) reveals instance of a class that doesn't exist in the source code (...
As your question includes the Frida tag you should try to use it (if it works on that application) and check the application at run-time what classes are loaded. …
- 1,223
3
votes
Accepted
How to hook RuntimeException to prevent crashes?
Your problems are independent of the RuntimeException instead they are located in your Frida hooking code:
When hooking an Java/Android method (or constructor) the Frida hook replaces the original function …
- 1,223